I have a hard drive that used to work, but recently does not.
It IS recognized by BIOS, but not by Windows. Here's the setup

Intel Core2 Duo (E6750 @ 2.66GHz)
Motherboard Asus P5N-E SLI
NVIDIA nForce 430 Serial ATA Controller onboard

c: WDC hard Drive = bootdisk (SATA)
d: Maxtor drive (IDE) [formatted NTFS]
e: Maxtor drive (IDE) [formatted NTFS]
f: CD-ROM drive (SATA)

BIOS finds all these devices at bootup. no problems with c: and f: in 
Windows
if both d: and e: are connected, Windows XP Pro SP2 reports only c: and f:
if only d: is connected, Windows reports c: d: and f:
if only e: is connected, Windows reports c: and f:

all drives worked at one time in this computer. suspect the trigger was 
failure of old CD drive and multiple connects/disconnects

Notable:
- same power plug and data cable plug from d: only test were used to 
connect e: only
- no difference if jumper on e: is switched from CS to Master (both d: 
and e: previously jumpered CS, and only e: connected)
- no difference if e: is connected by either A or B on IDE cable

-TIM

                         PCBUILD's List Owners:
                      Bob Wright<[log in to unmask]>
                        Mark Rode<[log in to unmask]>